Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Metal Injection Molding Analysis of WGV Head in a Turbo Charger of Gasoline Automobile

가솔린 자동차 터보차져용 WGV Head의 금속 분말 사출성형 해석

  • Park, Bo-Gyu (Structure Design Team, Korea Textile Machinery Research Institute) ;
  • Park, Si-Woo (Structure Design Team, Korea Textile Machinery Research Institute) ;
  • Park, Dae-Kyu (Structure Design Team, Korea Textile Machinery Research Institute) ;
  • Kim, Sang-Yoon (Structure Design Team, Korea Textile Machinery Research Institute) ;
  • Jeong, Jae-Ok (Advanced Development Team, PIM Korea) ;
  • Jang, Jong-Kwan (Department of Automotive Engineering, Yeungnam University College)
  • 박보규 (한국섬유기계연구원 구조설계팀) ;
  • 박시우 (한국섬유기계연구원 구조설계팀) ;
  • 박대규 (한국섬유기계연구원 구조설계팀) ;
  • 김상윤 (한국섬유기계연구원 구조설계팀) ;
  • 정재옥 (한국PIM 연구소) ;
  • 장종관 (영남이공대학교 자동차계열)
  • Received : 2014.10.31
  • Accepted : 2015.04.30
  • Published : 2015.07.01
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Abstract

The waste gate valve (WGV) for gasoline vehicles operate in a harsh high-temperature environment. Hence, WGVs are typically made of Inconel 713C, which is a type of Ni-based superalloy. Recently, the metal injection molding (MIM) process has attracted considerable attention for parts used under high-temperature conditions. In this study, an MIM analysis for the head and other parts of the WGV is conducted using a commercial CAE program Moldflow. Further, optimal manufacturing conditions are determined by analyzing flow characteristics at various injection times and locations. Moreover, to improve the accuracy of the analysis results, we compare the actual temperature of the mold during injection processing with that observed through the analysis. As the results, metal injection patterns of analysis are well in accord with these of short shot test. And the temperature variations of analysis is also very similar with those of feedstock when metal injection molding.

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References

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